VN061 Vietnam Bird Watching Tra Co Criteria: A1
Area: 3,000 ha
Altitude Range: 0-2 m asl
EBA / SA: None
Priority Landscape: None
The IBA is centred on Tra Co island, which is situated off the coast of northern Vietnam, close to the international border with China. The island comprises a long, sandy beach, backed by a Casuarina equisetifolia plantation, and is linked to the mainland by a causeway. The north-eastern tip of Tra Co island, known as Mui Got Giay, consists of a sandy spit, behind which is a small area of mangrove. The south-western tip of Tra Co island, known as Mui Ngoc, is situated at the mouth of a small bay, which contains a significant area of intertidal mudflats. On the far side of the bay, in Van Ninh commune, the coastline is dominated by aquacultural ponds. In addition to the island, the bay and the coastline of Van Ninh commune, the IBA also comprises Bai Tuc Lam, an area of mangrove along the international border. Tra Co IBA is currently not under any protected area designation, and the island is being developed as a tourism site1.
Bird Fauna: Key Features
Although there has only been a single, brief ornithological survey to date, the findings indicate that Tra Co is an important site for migratory bird species. The sandy spit on the northern tip of the island supports a high-tide wader roost, while the intertidal mudflats in the bay to the south of the island support wintering Saunders’s Gulls Larus saundersi. In fact, Tra Co IBA is the first wintering site for this globally threatened species in Vietnam to have been identified outside of the coastal zone of the Red River Delta1. In addition, the nationally threatened Great Cormorant Phalacrocorax carbo has been recorded in the Bai Tuc Lam mangrove area, although security restrictions have prevented a detailed survey of this area to date1. Furthermore, Tra Co is one of only two IBAs in Vietnam known to support Red-billed Starling Sturnus sericeus, a biome-restricted species.
Global Threat Status
|Saunders’s GullLarus saundersi||A1||VU||5||An adult and five juveniles observed in an area of aquacultural ponds in Van Ninh commune, and two adults were observed on an intertidal mudflat between Tra Co island and Van Ninh commune in December 20011.|
Biome Restricted Species: The site does not qualify under criterion A3. See Appendix 4 for details.
The site does not qualify under any secondary criterion.
Threats to Biodiversity
The biodiversity of Tra Co IBA is currently under severe threat from a number of sources. Mist netting, which has been observed on Tra Co island, represents a particular threat to migratory shorebirds. The development of tourism on the island is an additional threat, as it may result in loss of habitat and disturbance to birds. Also, unsustainable aquacultural practices have already resulted in the loss of mangrove from most aquaculture ponds within the IBA1.
|Aquaculture / fisheries||●|
|Disturbance to birds||● ●|
|Dredging and canalization||● ● ●|
|Infrastructure development||● ● ●|
|Recreation / tourism||● ●|
Perhaps the biggest potential threat to biodiversity at the IBA, however, is posed by plans to build a port and dredge the bay south-west of Mui Ngoc, in order to allow ferries to enter Mong Cai town. This planned development threatens to destroy the intertidal mudflats in the bay, which are the key feeding habitat for Saunders’s Gull1.
· None to date.
- The northern tip of Tra Co island, around Mui Got Giay, should be designated as a local protected area and all forms of infrastructure development within the area should be strictly prohibited1.
- Decisive measures are required to control mist netting at the IBA, particularly at Mui Got Giay, and should place special emphasis upon ensuring adequate protection for the avifauna of the site during bird migrations1.
- Further expansion and development of intensive aquaculture should be strictly controlled at the site1.
- Environmental considerations should be incorporated into any future plans for tourism and infrastructure development at the site1.
- Further surveys are required to determine the importance of the Bai Tuc Lam area for migratory waterbirds, and, until such time as these are carried out, this area should be considered of potential importance for bird conservation and taken into account in any future development plans1.
- Activities should be implemented to raise awareness among all stakeholders of the biodiversity and socio-economic values of the site, particularly among decision makers at the district and provincial levels1.